Cyclopentane chemistry. Part I. Some observations on 2-hydroxy-3-methylcyclopent-2-enone
Abstract
Enamines have been isolated from the reaction of 2-hydroxy-3-methylcyclopent-2-enone with aromatic amines and their structures have been elucidated. The enamine from the title compound and 2-aminoacetophenone can be cyclised to 2,9-dimethyl-1H-cyclopenta[b]quinolin-3(2H)-one. 2-Benzyl-3-methylcyclopent-2-enone has been synthesised.